| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Developing Your Assertiveness Skills and Confidence in Your Communication to Achieve Success: How to Build Your Confidence and Assertiveness to Handle | 978-1-84937-057-8 (1-84937-057-5) | 2013 | |
| Developing your influencing skills. How to influence people by increasing your credibility, trustworthiness and communication skills. | 978-1-84937-004-2 (1-84937-004-4) | 2009 | Lois Burton |
| Developing Your Influencing Skills How to Influence People by Increasing Your Credibility, Trustworthiness and Communication Skills. Lots of Exercises | 978-1-84937-022-6 (1-84937-022-2) | 2010 | " |